Add /etc/network/interfaces from Proxmox

proxmox/etc/network/interfaces

@@ -0,0 +1,65 @@
+# network interface settings; autogenerated
+# Please do NOT modify this file directly, unless you know what
+# you're doing.
+#
+# If you want to manage parts of the network configuration manually,
+# please utilize the 'source' or 'source-directory' directives to do
+# so.
+# PVE will preserve these directives, but will NOT read its network
+# configuration from sourced files, so do not attempt to move any of
+# the PVE managed interfaces into external files!
+
+auto lo
+iface lo inet loopback
+
+auto eno1
+iface eno1 inet manual
+
+auto eno2
+iface eno2 inet manual
+
+iface eno3 inet manual
+
+iface eno4 inet manual
+
+auto bond0
+iface bond0 inet manual
+        bond-slaves eno1 eno2
+        bond-miimon 100
+        bond-mode 802.3ad
+        bond-xmit-hash-policy layer2+3
+
+auto vmbr0
+iface vmbr0 inet static
+        address 85.209.118.134/28
+        gateway 85.209.118.129
+        bridge-ports bond0
+        bridge-stp off
+        bridge-fd 0
+#Main bridge for public VMs
+
+iface vmbr0 inet6 static
+        address 2a09:94c4:55d1:7680::86/64
+        gateway 2a09:94c4:55d1:7680::1
+
+auto vmbr1
+iface vmbr1 inet manual
+        address 10.2.1.1/24
+        bridge-ports none
+        bridge-stp off
+        bridge-fd 0
+#Internal bridge for VMs
+
+auto vmbr2
+iface vmbr2 inet static
+        address 192.168.1.1/24
+        bridge-ports none
+        bridge-stp off
+        bridge-fd 0
+
+        post-up   echo 1 > /proc/sys/net/ipv4/ip_forward
+        post-up   iptables -t nat -A POSTROUTING -s '192.168.1.0/24' -o bond0 -j MASQUERADE
+        post-down iptables -t nat -D POSTROUTING -s '192.168.1.0/24' -o bond0 -j MASQUERADE
+#NAT bridge for VMs that need masquerading
+
+source /etc/network/interfaces.d/*